Indeed, your example also works on my session ... it seems to be linked to one of my reads features. Because even with my data
>g$V1 [1]Error: 'getCharCE' must be called on a CHARSXP >head(g)$V1 [1] "Simple_repeat,LINE" "snRNA,snRNA" "Simple_repeat" Finally I found it but data.table really doesn't like it :) > dt["1335_868_1708_F3-ad"] *** caught segfault *** address (nil), cause 'unknown' Traceback: 1: `[[<-.data.frame`(`*tmp*`, lc, value = 31239L) 2: `[[<-`(`*tmp*`, lc, value = 31239L) 3: `[.data.table`(dt, "1335_868_1708_F3-ad") 4: dt["1335_868_1708_F3-ad"] I will check that in details. Thanks again. Regards, Nicolas > sessionInfo() R version 2.13.0 (2011-04-13) Platform: x86_64-unknown-linux-gnu (64-bit) locale: [1] LC_CTYPE=fr_FR.UTF-8 LC_NUMERIC=C [3] LC_TIME=fr_FR.UTF-8 LC_COLLATE=fr_FR.UTF-8 [5] LC_MONETARY=C LC_MESSAGES=fr_FR.UTF-8 [7] LC_PAPER=fr_FR.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=fr_FR.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] data.table_1.6 RColorBrewer_1.0-2 multicore_0.1-5 [4] Rsamtools_1.4.0 Biostrings_2.20.0 GenomicRanges_1.4.0 [7] IRanges_1.10.0 org.Mm.eg.db_2.5.0 RSQLite_0.9-4 [10] DBI_0.2-5 AnnotationDbi_1.14.0 Biobase_2.12.0 Steve Lianoglou a écrit : > Hi Nicolas, > > On Tue, May 10, 2011 at 12:29 PM, Nicolas Servant > <[email protected]> wrote: > >> Thanks a lot. It works but then, do you how I can have access to the >> result ! >> For instance : >> >>> g$V1 >>> >> [1]Error: 'getCharCE' must be called on a CHARSXP >> > > Hmm ... this works for me: > > > R> dt <- data.table( > reads=c( > "1279_1000_530_F3-ad", > "1279_1000_530_F3-ad", > "1279_1000_940_F3-ad", > "1279_1000_940_F3-ad", > "1279_1018_1051_F3-ad"), > > annot=c( > "Simple_repeat", > "LINE", > "snRNA", > "snRNA", > "Simple_repeat"), > key='reads') > > R> g <- dt[, paste(annot, collapse=','), by=reads] > R> g$V1 > [1] "Simple_repeat,LINE" "snRNA,snRNA" "Simple_repeat" > > What are you trying exactly? > What is your sessionInfo()? > > -steve > > -- Nicolas Servant Equipe Bioinformatique Institut Curie 26, rue d'Ulm - 75248 Paris Cedex 05 - FRANCE Email: [email protected] Tel: 01 56 24 69 85 http://bioinfo.curie.fr/ _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
